Intersection-valve



(No Model.) 2 Sheets-Sheet 1. P. C. VINEY.

INTBRSECTION VALVE.

N0.4584,278. Patented June 8,1897.

TH: Noms PETERS ce, wom-mno., msmnoou' (No Model.) 2 Sheets-Sheet 2.

'I'. G. VINEY. INTERSEGTION VALVE. No. 584,278. Patented June 8,1897.

Ilwrrnn rares FREDERICK C. VINEY, OF PHILADELPHIA, PENNSYLVANIA.

lNTERSECTlON-VALVE.

SPECIFICATION forming part of Letters Patent No. 584,278, dated June 8,1897. Application filed October l, 1896. Serial No. 607,579. (No model.)

To all whom t may concern:

Be it known that I, FREDERICK O.Vn\nva citizen 'of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Intersection -Valves, of which the following' is aspecification.

@ne object of my invention is to so construct an intersection-valve asto provide for the firm seating of the gates as they are depressed; afurther object being to so construct the valve that it can be readilyused at points where a pipe of one diameter meets or crosses another oflarger or smaller diameter; another obj ect being to provide anantifrictionbearing for the gate-spindles independent of thestuffing-boxes for said spindles, and a still further object being toprovide for the ready application and removal of the bolts whereby thestuffing-box followers are retained in position. These objects I attainin the manner hereinafter set forth, reference being had to theaccompanying drawings, in which- Figure 1 is a vertical sectional viewof an intersection-valve constructed in accordance with my invention.Fig. 2 is a sectional plan View on the line a; x, Fig. 1. Fig. 3 is asectional plan view on the line ry y, Fig. 1; and Fig. 4 is a sideelevation of the upper portion of the valve-casing.

The chest 1 of the valve has in the present instance four branches 2,corresponding with the four valve-seats 3, which occupy the four sidesof the quadrangular interior of the chest, said valve-seats beingsecured to the four sides of the valve-chest in any available manner as,for instance, by ribs on the backs of the seats, which are adapted todovetailed openings in said sides of the valve-chest, as shown in Fig.2, or by pouring molten metal between a rib or tongue on the back of theseat and a recess in the valve-chest in the ordinary manner.

The valve-seats are inclined inwardly from top to bottom, and thevertically-movable valves or gates 4: have correspondingly-inclinedouter faces, so that when depressed to their full extent they will fitsnugly against the faces of the valve-seats.

In order to insure the retention of the gates 4E firmly in contact withthe seats when said gates are depressed, each corner of the valvechesthas au inwardly-projecting rib 5, as shown in Fig. 3, and when eithergate is depressed to its full ext-ent its edges are brought into contactwith the faces of these ribs,'which iiank the valve-seats, and as thesefaces overlap the valve-seats at an angle contactot' the edges of eithergate with said faces effectually prevents any outward movement of saidgate from its seat and thus insures a tight joint between the two. Eachgate has at the upper end ahollow boss 6, in which is inserted a nut 7which receives the operating screwstem S, the nut and the recess formedin the hollow boss G for its reception being square or otherwise shapedso as to prevent rotation of the nut, so that turning of the screw-stemin one direction or the other will effect the raising or depression ofthe gate.

On the top of the valve-chest l. is a cap or hood 9, from which projectupwardly a series of stuffing-box casings 10, one for each stein 8, eachof these stufng-box casings having a follower 11, which serves toconfine the packing material against a ring 12, seated upon a shoulderat Jthe base of the casing, this ring being secured in place byset-screws 13 and serving also to vertically con fine a shoulderedsleeve 14, of brass, Babbitt metal, or other non -corrosive material,which is suitably seated in the opening at the top ot' the hood 9 andserves as a seat fora flange or collar 15 on the screw-stem 8, slightplay of this collar between the ring 12 and the shoulder of the ring 14being preferably permitted, so that the collar is never likely te becomerusted or stuck in its bearing.

As the internal ring 12 is secured iu place independently of thestuffing-box follower and packing said follower and packing can bereadily removed and replaced without disturbing the ringl?J or thevalve-stein.

In the stuffing-box structure, above the head 9, are formed lateralslots 16, which communicate with the outer portion of said structurethrough central radial slots 17 and have widened bases, as shown bydotted lines in Fig. 1, these slots 16 serving to receive the bolts 19,whereby the stuffing-box followers 11 are confined in place, the boltsbeing first introduced radially through the slots 17 and then movedlaterally until they assume their proper relation in respect to theflanges of IOO the stuffing-box followers, the heads of the boltstraveling in the widened bases of the slots 16 until they reach the endsof the same, and the slots 17 being afterward filled by means of blocks20, if desired.

Mounted on the boss 6 of each of the gates i is a sleeve or washer 21,which rises and falls with the gate and by contact with the top of thehood or cover 9 serves to limit the rising movement of the gate. Henceby varying the depth of this sleeve or washer the rising movement ofeither gate can be restricted to any desired extent. By this means gatesof the saine size can be used in each valve-chest even when some of theconnections and some of the valve-seats are smaller than others, asshown in Fig. 3, without risk of raising a gate above the valve-seat andthereby incurring the liability of injuring or destroying said seat byengagement of the lower edge of the gate therewith when said gate firstcommences to descend.

ries of inclined seats around its sides, and Y ribs projecting inwardlyfrom the corners of the chest so as to overlap said seats, andvertically-movable gates inclined on the outer sides to accord with theseats, and adapted to engage at the edges, with the inwardlyprojectingribs at the corners of the chest, substantially as speciiied.

2. The combination of the valve-chest having a plurality of seats withvertically-moving gates, the operating screw-stems therefor,

and detachable sleeves or washerswhereby the rising movement of thegates is restricted, substantially as specified.

3. The combination of the gate-operating screw-stem having a flange orcollar thereon, the valve-chest having a shouldered bearingring in whichsaid tlange is seated, and a stuffing-box base-ring whereby said bearingis retained in place, said base-ring permitting a slight vertical playof the flange of the screwstem in its bearing` substantially asspecified.

4. The combination of the valve-chest having valve-seats of differentdiameters, with valves or gates all of the same size, and dif-Jferential stops for restricting the rise of the valves, whereby a valvewhich closes an opening of small diameter is arrested at an earlierpoint in the lift than a valve which closes an opening of largerdiameter, substantially as speeied.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERICK C. 'VINEY Witnesses:

CHAs. Il. BANNARD, F. E. BncHToLn.

